A Child Swinging on a Swing Utilizes Which Type(s) of Energy

question 40

Multiple Choice

A child swinging on a swing utilizes which type(s) of energy?

• A) kinetic energy only because the child is in constant motion
• B) potential energy only, because the child has to invest energy to get the swing to move
• C) chemical energy only, because it is the child's metabolism that powers the muscles that make the swing move
• D) kinetic and potential energy only, but in constantly changing ratios: when changing direction, it is pure potential energy; at the bottom of the arc, it is pure kinetic energy
• E) kinetic, potential, and chemical energy: the child powers the swing with chemical energy in the muscle, cells and the swing moves like a pendulum with changing ratios of kinetic and potential energy.

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Definitions:

Gross Profit

The financial gain obtained after subtracting the cost of goods sold from total sales revenue.

Ratio

A quantitative relationship between two numbers, often used in financial analysis to assess performance, financial health, and operational efficiency.

Income Statement

A financial report that shows a company's revenues and expenses over a specified period of time, resulting in net profit or loss.

Vertical Analysis

A technique in analyzing financial statements, where each item in the primary categories of assets, liabilities, and equity on a balance sheet is expressed as a ratio of the overall category total.